This is one Mini to Standard Engine Adapter (3 sets) by Estes Rockets. Please note in store availability and pricing may vary. Adapts standard engine mounts to hold a mini engine.
Two simple steps transform a mini engine into a standard size. Insert a mini engine into the adapter, and insert the adapter into a rocket. 3 adapters per pack. Reusable.
NOTE: Rockets weighing up to 2 ounces that would normally fly on A8-3 engines can be flown on A10-3T engines.
